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6
RESULTS

Media Type
6
texts
Availability
6
Always Available
Topics & Subjects
2
Geology, Stratigraphic -- Pennsylvanian
1
Concretions -- Middle West
1
Geological time
1
Geology -- Badlands (S.D. and Neb.)
1
Geology -- Illinois
1
Geology -- Ohio Lucas County
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Collection
6
Biodiversity Heritage Library
6
Fieldiana
Creator
1
carman, j. ernest (joel ernest), b. 1882
1
clark, john, 1909-1967
1
nitecki, matthew h
1
shabica, charles w
1
wilson, john andrew, 1914-
1
woodland, bertram g
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Language
6
English
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